Dylina T J
J Prosthet Dent. 1999 Aug;82(2):136-42. doi: 10.1016/s0022-3913(99)70146-0.
The ovate pontic was initially described in 1933, but was only recently considered clinically acceptable. Historically, there has been resistance to ovate pontics, but this resistance lacks scientific and biologic evidence to justify rejection. Explicit instructions are mandatory for predictable results from dental laboratories. This article describes a method for communicating exact dimensions for an ovate pontic that was previously contoured for a patient in a provisional restoration to ensure clinical and histologic success. Polyvinyl siloxane putty is suggested as a matrix material for the predetermined contour. An esthetic and functional restoration will result when these materials and procedures are used in an appropriate sequence.
卵圆形桥体最初于1933年被描述,但直到最近才被临床认为是可接受的。从历史上看,人们对卵圆形桥体存在抵触情绪,但这种抵触缺乏科学和生物学证据来证明应予以拒绝。要想从牙科实验室获得可预测的结果,明确的指示是必不可少的。本文介绍了一种方法,用于传达卵圆形桥体的确切尺寸,该桥体先前已在临时修复体中为患者进行了塑形,以确保临床和组织学成功。建议使用聚乙烯基硅氧烷油灰作为预定轮廓的基质材料。当按照适当的顺序使用这些材料和程序时,将获得美观且功能良好的修复体。